When Joaquín “El Chapo” Guzmán sat down with Sean Penn for a lengthy Rolling Stone interview published just after his capture by Mexican authorities, Mexican media had just one question: How did Kate del Castillo get involved?

The 43-year-old actress is one of the most recognizable faces in Mexico, beloved, ironically, for her role as a drug kingpin in the popular telenova La Reina del Sur (The Queen of the South). While her popularity suffered after she tweeted support for El Chapo back in 2012 — “Today I believe more in ‘El Chapo’ Guzmán than in the Governments that hide painful truths: Those who hide the cure for AIDS and cancer for their own benefit and to become richer," she wrote — that didn't stop this brunette beauty from serving as an intermediary between Penn and Guzman in what's becoming one of the oddest crime stories in both U.S. and Mexican history.

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Now, Castillo is in a bit of hot water: NBC News reports that Mexican officials said they are investigating Guzman's meeting with Penn and Castillo in October "to see if any crimes were committed." On Thursday, the actress tweeted a message of thanks to her fans — her first public statement since Guzman's arrest — for standing by her while she's under scrutiny by both Mexican and American authorities.